Welding.



E. L. WALKER.

WELDING.

APPLICATION IILEI) JUNE 17, 1914.

Patented Mar. 23, 1915.

2 SHEBTSSHEET 1.

INVEN 70/? I TTOREY WITNESSES $744,. 5*- "2 damp,

E. L. WALKER.

WELDING.

APPLICATION FILED JUNE 17, 1914.

1,132,989. Patented Mar. 23, 1915.

2 SHE'ETS-8HEET 2.

WITNESSES v INVESTOR j zg @52 f/zm UNITED STATES PATENT onnron.

11mm! n. WALKER, or PHILADELPHIA, rnmrsrnvnmn, assronon no stain arm KILBURN COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A

DELAWA oonceona'rt'bn or- WELDING.

Specification of Letters ,Eatent. Patented M 23 1915 A lication filed June 11, 1914. Serial No. amass.

To all whom it may concern.

Be it known that I, EMERY L. Wanna, a citizen of the United States, residing at Philadelphia in the county of Phlladelphla and State of Pennsylvania, have invented certain new and useful Improvements in Welding, of which the following 15 a specification.

My invention relates to improvements 1n the art of welding and is particularly directed to the production of an improved process whereby a metallic plate may have a wooden strip, or other strip of non-conducting material firmly secured thereto.

The objects of my invention are to dev se improved processes for producing these results, my invention also comprising the articles made by such processes as new articles of manufacture. 80 I'have found it advisable in some situations to secure to the edge or other portion of a metallic plate a strip of wood or other IIQII'VIbItL- tory or vibration deadening materlal. For example, in the construction of automobile bodies, upholstery is provided on the inner side of the car and secured to the upper edge of the metallic plate on the outer side of the car in such a manner as to leave space for a pocket between the upholstery and the body of the car. By my invention, 1 may secure a wooden strip to the inner side of the metallic plates referred to adjacent the upper edge, this wooden strip serving as a tacking strip to which the upholstery is secured, space thus being left between the upholstery and the metallic plate for the pocket referred to. The wooden strip. also serves to deaden or absorb the vibrations of the metallic plate, to lessen the un leasant when resting the hand upon the side of the car during its operation.

Among the uses to which my invention may be put, may be mentioned the application ofwood grounds to steel bucks in buildinggconstruction, and similar uses. y my invention, when a wooden strip is secured to a metallic plate by passing conducting metallic rods through the strip and $0 welding the ends of the same to the plate, the strip and plate are closely and effectively secured together, while at the same time the outer surface of the plate is unmarred and there is no metal to be removed by a subsequent operation as there would be if the vibration received by an occupant o the car.

wooden strip were secured to the plate by rivets, the ends of which must subsequently be filed down flush with the outer surface of the plate. When a single metallic plate has" one or more wooden members secured to a, face thereof in accordance with my invention, the metallic rods assin through the wooden strip are provid d wit upset or enlar ed ends seated in countersunk recesses wit in the surface of the wooden strip 0 posite to that which is in contact with t .e metallic plate.

In order thatmy invention may be more clearlv understood, attention is hereb directed to the accompanying drawings flirming part of this specification and illustrating the manner in which the same may be carried out. y

In the drawings, Figure 1 represents-a cross-section througha single plate and wooden strip being secured thereto, the terminals of the welding machine bein shown in position, Fig. 2 is a plgnview o the same, Fig. 3 represents a cross-section through a pontionof a steel buck to which wood grounds are to be applied, before welding, and Fig. 4 is a similar cross-section of the construction after the welding is accomnlished.

Referrin to the drawings, the wooden strip 1 is s own in Figs. 1 and 2 as being secured to metallic plate 2 adjacent to one edge thereof. In this relation it may be useful, among other purposes, as stated, to serveas a hand rail and tacking strip to which upholstery may be secured in the construction of automobile bodies. Metallic rods 3 and l are driven through strip 1 or extendedthrough previously drilled holes in the strip 1, these rods having heads 5, 5,

seated in countersunk recesses formed in they face 6 of the strip 1. Rods 3, 4 areprefei ably of a length'slightly greater than the thickness of the strip 1, although-they may be of a length substantially equal to the thickness of the strip. The strip 'is positioned against the plate 2 with the endsof the metallic rods in contact with the surface of the plate, and the contacts 7 and 8- of a suitable welding machine are brought in contact under suflicient pressure with one end of one of the rods, and the plate 2 in line with, or adjacent to, the opposite end of the rod. Upon the passage of a suitable welding current through the rod and the no 7 the operation being repeated as many times Letters Patent N0. M eases.

as there are rods extending through the strip. The. heads 5 oftherods will tightly fit within their recesses and hold the strip closely positioned against the plate. Usually, as stated, the rods 3 and 4 are somewhat longer than the thickness of the stri 1, and have conically-pointed ends, or en s of reduced cross-section, which are placed in contact with plate 2. When the welding current and pressure are ap lied, the pointed ends of the rods melt su ciently to flow under the pressure to fill the ends of the openings throu h which the rods extend in strip 1,-the hea s 5 of the rods then seatin tightly within their recesses in face 6 o strip 1. If desired, a metallic trim rail for an automobile body may at the same operation, be welded to the outer face of plate 2, extending opposite the ends of rods 3 and 4, and about t e edge of plate 2.

In Figs. 3 and a, I have shown the application of wood grounds to steel bucks, as used in building construction. The buck 10 has wooden strips 11, 12 and 13 secured to its outer surfaces by metallic studs 14, having, preferablly, conically pointed ends and en arged hea s as shown. When welding current is applied through terminals 7 and 8 the metallic rods are welded firmfily to the buck, the heads of the rods then ling the countersunk recesses in the outer faces of the wooden strips, and the metal at the pointed ends of the rods filling the openings through which the rods extend, as shown in Fig. 4.

Having now particularly described my invention, what claim and desire to protect by Letters Patent is as follows l. The process of welding consistin in passin through a member of non-con uc'tlng, v1 ration-absorbing material, which it is desired to secure to a metallic plate, conin the Patent Oflice.

[siren Correct Signed and sealed this 13th day of April, A. 0., 1915.

areas ducting metallic r of a length at least equal to the thickness of said member, placing said member in contact with a metallic plate with the adjacent ends of said rods in contact with the plate, and passing a welding current through said plate and rods while pressing the same together with a suitable welding pressure, to weld the same tbgether, reducethe length of said rods, and 'secure said member to said plate with a close contact, substantiall as set forth.

2. The process 0 welding consisting in passing through a wooden strip conducting metalhc rods of a length somewhat greater than the thickness of said strip, said rods halving enlarged portions at one end adapted to be seated, when the welding is complete, in corresponding recesses in one face of sald strip placing said strip in contact with a metal ic late with the ends opposite I to said enlarge ends of the said rods in contact with the plate and passing a welding current through said plate and rods while pressing the same together with a suitable welding pressure, to weld the same together and cause close contact of late and wooden strip, substantially as orth.

3. As a new article of manufacture, a metallic plate having a wooden strip secured it is hereby certified that in Letters Patentfib. 1,132,989, granted March 23, 1915,

upon the application of Emery L. Walker, of Philadelphia, Pennsylvania, for an improvement in Welding, errors appear in the drawings requiring correction as follows: Cancel Sheet 2; in the heading of the remaining sheet strike out the words and numerals 2 SheetsSheet 1 and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case J. T. NEWTON,

Acting Commissioner of Patents. 

